Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika https://jurnal.unipasby.ac.id/index.php/buana_matematika <p style="text-align: justify;">Buana Mathematika: Jurnal Ilmiah Matematika dan Pendidikan Matematika is an <strong>open access journal</strong> to support global exchange of the knowledge related to research results. The journal itself is published <strong>twice in one year in June and December</strong>.</p> <p style="text-align: justify;">This journal facilitates research themes including: (1) Some fields in Mathematics such as algebraic, analysis, mathematical modeling, computational mathematics, applied mathematics, graphs theories, and other pure mathematics, (2) Mathematics Learning Design, (3) Development of Teaching Materials or Learning Models, (4) Mathematics Learning Media, (5) Mathematics Teaching Aids, (6) Analysis of Student Difficulties in Learning, (7) Evaluation of Mathematics Learning, (8) Mathematics Education Curriculum, (9) Mathematical Learning Theory, (10) History and Philosophy of Mathematics, (11) Analysis of Application of Models/Approaches/Methods/Learning Strategies, (12) IT-based learning media, (13) Classroom Action Research, (14) Creativity and Innovation in Mathematics Learning, (15) Lesson Study Mathematics Learning.</p> <p style="text-align: justify;">Based on the Decree of the Director General of Research and Development Strengthening of the Ministry of Research, Technology and Higher Education Republic of Indonesia Number 30 / E / KPT / 2019 Regarding the Ranking of Accreditation for Scientific Journal Period VI in 2019, <strong>Buana Matematika: Jurnal Ilmiah Matematika dan Pendidikan Matematika</strong> hold <strong>fifth rank of Indonesian Journal Grading System</strong> starting issue of <strong>Volume 7 Number 2 of 2017 up to Volume 12 Number 2 of 2022</strong>.</p> <p>p-ISSN : 2088-3021 ; e-ISSN : 2598-8077</p> Universitas PGRI Adi Buana Surabaya en-US Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika 2088-3021 Analisa Penjualan Air Minum dalam Kemasan dengan Metode Single Exponential Smoothing https://jurnal.unipasby.ac.id/index.php/buana_matematika/article/view/5400 <p>The bottled consuming water enterprise has grown rapidly to diverse provinces and cities in the course of Indonesia now. The development of this enterprise is because of high call for clients and the lower nice of uncooked water in springs and wells PT. Cahaya Bumi Intanpari (CBI) is a&nbsp;agency&nbsp;that produces gallons, bottles, and glasses bottled&nbsp;drinking&nbsp;water&nbsp;beneath&nbsp;the&nbsp;logo&nbsp;“AirMu”.&nbsp;sales&nbsp;of bottled water&nbsp;every&nbsp;month&nbsp;constantly&nbsp;vary, the&nbsp;control&nbsp;of PT. Cahaya Bumi Intanpari&nbsp;calls for&nbsp;an estimate of&nbsp;the quantity&nbsp;of&nbsp;manufacturing&nbsp;of each&nbsp;type of&nbsp;bottled water to&nbsp;marketplace&nbsp;demand&nbsp;within the&nbsp;destiny.&nbsp;based totally&nbsp;at the&nbsp;description of the history, in this take a look at, a computing device-based application became designed and built. The research method used consists of information series and statistics analysis, statistics series includes remark, interviews, and literature have a look at, whilst statistics evaluation consists of making facts waft diagrams. The forecasting&nbsp;version&nbsp;is&nbsp;used in&nbsp;forecasting the&nbsp;income&nbsp;of bottled&nbsp;drinking&nbsp;water at PT. Cahaya Bumi Intanpari is a time&nbsp;series&nbsp;or&nbsp;it may&nbsp;be&nbsp;referred to as&nbsp;a time&nbsp;collection, and the forecasting&nbsp;technique&nbsp;used is&nbsp;unmarried&nbsp;exponential smoothing. From the&nbsp;outcomes&nbsp;of calculation&nbsp;checking out,&nbsp;it's far&nbsp;demonstrated&nbsp;that the single exponential smoothing method can be applied inside the AMDK income forecasting system, primarily based on the validity take alook at, it’s miles discovered that the prediction check effects of bottled consuming water sales below 20% are covered within the appropriate standards.</p> Retno Tri Vulandari Andriani Kusumaningrum Dwi Handoko Copyright (c) 2022 Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika http://creativecommons.org/licenses/by-sa/4.0 2022-12-14 2022-12-14 12 2 105 116 10.36456/buanamatematika.v12i2.5400 Penerapan Rantai Markov Dalam Peramalan Cuaca (Studi Kasus: Cuaca Harian di Kota Padang) https://jurnal.unipasby.ac.id/index.php/buana_matematika/article/view/6374 <p>Information about the weather is needed. Weather is one of the considerations of the community in carrying out various activities. The purpose of this study is to provide information related to weather forecasts by applying Markov chain theory. The Markov chain is a random process in which all information about the future is contained in the present state. The study uses daily weather data that occurs on June 1, 2022 to June 30, 2022 to predict the weather for the next 7 days. The data used is secondary data taken from the website of the Meteorology, Climatology, and Geophysics Agency (BMKG) of Padang City. Based on the results of calculations using Markov chains, a transition matrix is obtained that is used to predict the weather for the next day.</p> Winda Fransiska Ririn Hayatun Nufus Mohamad Syafi’i Lilis Harianti Hasibuan Copyright (c) 2022 Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika http://creativecommons.org/licenses/by-sa/4.0 2022-12-15 2022-12-15 12 2 117 126 10.36456/buanamatematika.v12i2.6374 Pengembangan Media Pembelajaran Matematika Berjudul Game Learn with Adventure Menggunakan Scratch https://jurnal.unipasby.ac.id/index.php/buana_matematika/article/view/5451 <p>The purpose of this study was to describe the result of developing mathematics learning media using the Scratch application entitled Game Learn with Adventure on the topic of the Linear Equation in One Variable (PLSV). This study uses the Multimedia Development Life Cycle (MDLC) development model through six-stage, namely concept, design, material collecting, assembly, testing, and distribution. Furthermore, a trial of the game was conducted on the participants, namely mathematics teacher prospective students. To find out the response of participants to the media that has been designed so that researchers provide a questionnaire on Google Form and interviews. Research participants are 20 of the Mathematics Education Study Program class of 2021 semester 2 at one of the universities in Bandung. Based on the research results, it is known that the game learn with adventure on the PLSV topic can be designed very well through the Scratch application in the MDLC development model. The results of the calculation of student responses show an average percentage of 93.3% of positive statements in the very good category. Thus the need for research to determine the effectiveness of the learning process and game development on different topics.</p> Anggi Lestari Eyus Sudihartinih Copyright (c) 2022 Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika http://creativecommons.org/licenses/by-sa/4.0 2022-12-25 2022-12-25 12 2 127 144 10.36456/buanamatematika.v12i2.5451 Pengaruh Disposisi Matematis Mahasiswa pada Pembelajaran Hybrid Learning Terhadap Prestasi Belajar Mahasiswa https://jurnal.unipasby.ac.id/index.php/buana_matematika/article/view/6319 <p>This study aims to determined the effect of students' mathematical dispositions when applying the hybrid learning model to student achievement in the mathematics education undergraduate program at Wahidiyah University in the even semester of the 2021/2022 academic year. This research was a quantitative research with survey method. The sampling technique in this study used saturated sampling. The data collection method used is the documentation of the final semester exam results for student achievement data and a questionnaire for students' mathematical disposition data. In this study using a simple regression test which is calculated using the SPSS v.26 for Windows program. The research data were tested for normality, linearity, and simple regression. The regression model equation Y = 0.760 + 0.983 X + means that every 1% increase in mathematical disposition will result in an increase in mathematics learning achievement of 0.98 and vice versa. The conclusion of this study was that the mathematical disposition of students when learning Hybrid Learning affects student learning achievement positively and significantly where the influence of students' mathematical dispositions on learning Hybrid Learning on student learning achievement is 96.6% and the remaining 3.4% is influenced by other variables not examined in this research.</p> Fajar Lestari Copyright (c) 2022 Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika http://creativecommons.org/licenses/by-sa/4.0 2022-12-25 2022-12-25 12 2 145 156 10.36456/buanamatematika.v12i2.6319